const express = require('express')
const app = express()
const bodyParser = require('body-parser')
const cors=require("cors");
// 处理静态资源
app.use(express.static('public'))
// 处理参数
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
//设置允许跨域访问该服务
app.use(cors());

app.get('/async1', (req, res) => {
  res.send('hello1')
})
app.get('/async2', (req, res) => {
  if(req.query.args == 'hello1') {
    res.send('success')
  }else{
    res.send('error')
  }
})

app.get('/axios_data', (req, res) => {
  res.send('Hello axios!')
})
app.get('/axios', (req, res) => {
  res.send('axios get 传递参数' + req.query.id)
})

app.get('/axios/:id', (req, res) => {
  res.send('axios get (Restful) 传递参数' + req.params.id)
})

app.delete('/axios', (req, res) => {
  res.send('axios delete 传递参数' + req.query.id)
})
app.post('/axios', (req, res) => {
  res.send('axios post 传递参数' + req.body.username + '---' + req.body.password)
})
app.put('/axios/:id', (req, res) => {
  res.send('axios put 传递参数' + req.params.id + '---' + req.body.username + '---' + req.body.password)
})

app.get('/axios-json', (req, res) => {
  res.json({
    uname: 'zhangsan',
    age: 25
  });
})


app.get('/fetch_data1', (req, res) => {
  res.send('Hello Fetch!')
})
app.get('/books', (req, res) => {
  res.send('传统的URL传递参数：' + req.query.id)
})
app.get('/books/:id', (req, res) => {
  res.send('Restful形式的URL传递参数：' + req.params.id)
})
app.delete('/books/:id', (req, res) => {
  res.send('DELETE请求传递参数：' + req.params.id)
})
app.post('/books', (req, res) => {
  res.send('POST请求传递参数：' + req.body.uname + '---' + req.body.pwd)
})
app.put('/books/:id', (req, res) => {
  res.send('PUT请求传递参数!' + req.params.id + '---' + req.body.uname + '---' + req.body.pwd)
})

app.get('/json_data', (req, res) => {
  res.json({
    uname: 'zhangsan',
    age: 23,
    gender: 'female'
  });
})

app.get('/a1', (req, res) => {
  setTimeout(function(){
    res.send('wait 1 seconds response')
  },1000);
})
app.get('/a2', (req, res) => {
  setTimeout(function(){
    res.send('wait 2 seconds response')
  },2000);
})
app.get('/a3', (req, res) => {
  setTimeout(function(){
    res.send('wait 3 seconds response')
  },3000);
})


app.get('/data1', (req, res) => {
  res.send('response data1')
})
app.get('/data2', (req, res) => {
  setTimeout(function () {
    res.send('response data2')
  }, 3000);
});
app.get('/data3', (req, res) => {
  res.send('response data3')
});

//启动监听
app.listen(8082, () => {
  console.log('running...')
});